Updated specs are available.
Differential side-gear thrust-washer selection (NA6)
This spec doesn't apply to the car you selected.
Not yet checked against the factory manual for your car's year. It's verified in the 1990 Mazda MX-5 Miata Workshop Manual; later manuals may differ.
Mark 0: ≈0.07677–0.07874 in (1.95–2.00 mm); mark 1: ≈0.08071–0.08268 in (2.05–2.10 mm); mark 2: ≈0.08465–0.08661 in (2.15–2.20 mm)Mark 0: 1.95–2.00 mm; mark 1: 2.05–2.10 mm; mark 2: 2.15–2.20 mm
Factory manualTaken from a Mazda factory workshop manual, with page citation.
Procedure
Open differential only. Select the thrust washers required to achieve side-gear/pinion-gear backlash of 0–0.1 mm. Mark numbers identify thickness choices; they are not backlash measurements. Follow the full factory differential reassembly procedure and secure the pinion-shaft knock pin as specified.
Applies to
- NA 1990–1993 (B6, open) — Actual 1990 factory evidence; other years in the approved family inferred with owner approval.
- Verified in: 1990 Mazda MX-5 Miata Workshop Manual
Sources (1)
View 1 source citations
Page M–40 (PDF p. 423) · Printed value & notes
Part no. 1193-10-89CPage M–40 (PDF p. 423)Printed: “Thrust washer thickness: Identification mark Thickness 0 1.95—2.00mm (0.0768—0.0787 in) 1 2.05—2.10mm (0.0807—0.0827 in) 2 2.15—2.20mm (0.0846—0.0866 in)”
Related service specs
- Differential pinion bearing preload (NA6)
- Differential pinion bearing preload (NA8)
- Differential pinion bearing preload (NB1)
- Differential side-gear/pinion-gear backlash — standard (NA6)
- Differential side-gear/pinion-gear backlash — standard (NA8)
- Differential side-gear/pinion-gear backlash — standard (NB1)
- Differential side-gear/pinion-gear backlash — standard (NB2 open differential)
- Differential drive-pinion/ring-gear backlash — setup target (NA6)